German phrase
Wie erreichen Sie uns am ~?
Meaning
How can you contact us on ___?
When to use it
It asks how to contact us. Use it formally to ask which contact method is available on a date.
Example dialogue
Wie erreichen Sie uns am 20. Juli?
How can you contact us on July 20?
An dem Tag sind wir nur per E-Mail erreichbar.
On that day, we can only be contacted by email.